22266761220 has 288 divisors, whose sum is σ = 78607979520. Its totient is φ = 5223398400.

The previous prime is 22266761213. The next prime is 22266761243. The reversal of 22266761220 is 2216766222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2020044 + ... + 2031036.

Almost surely, 2^22266761220 is an apocalyptic number.

22266761220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22266761220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39303989760).

22266761220 is an abundant number, since it is smaller than the sum of its proper divisors (56341218300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22266761220 is a wasteful number, since it uses less digits than its factorization.

22266761220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064 (or 11045 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 22266761220 in words is "twenty-two billion, two hundred sixty-six million, seven hundred sixty-one thousand, two hundred twenty".